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        <p>Library Version 11.2.5.3</p>
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		Distributed Transactions
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    <div class="sect1" lang="en" xml:lang="en">
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            <h2 class="title" style="clear: both"><a id="xa_xa_config"></a>Configuring Berkeley DB with the Tuxedo System</h2>
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          <dt>
            <span class="sect2">
              <a href="xa_xa_config.html#idp52786896">Update the Resource Manager File in Tuxedo</a>
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            <span class="sect2">
              <a href="xa_xa_config.html#idp52812512">Build the Transaction Manager Server</a>
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            <span class="sect2">
              <a href="xa_xa_config.html#idp52759288">Update the UBBCONFIG File</a>
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      <p>
To configure the Tuxedo system to use Berkeley DB resource managers, do the following:
</p>
      <div class="sect2" lang="en" xml:lang="en"><div class="titlepage"><div><div><h3 class="title"><a id="idp52786896"></a>Update the Resource Manager File in Tuxedo</h3></div></div></div><p>For the purposes of this discussion, assume that the Tuxedo home directory is in</p><pre class="programlisting">/home/tuxedo</pre>
In that case, the resource manager file will be located in
<pre class="programlisting">/home/tuxedo/udataobj/RM</pre>
Edit the resource manager file to identify the Berkeley DB resource manager, the name of the resource manager switch, and the name of the library for the resource manager.
<p>For example, on a RedHat Linux Enterprise (64-bit) installation of Oracle Tuxedo 11gR1, you can update the resource manager file by adding the following line:</p><pre class="programlisting">BERKELEY-DB:db_xa_switch:-L${DB_INSTALL}/lib -ldb </pre><p>where <code class="literal">${DB_INSTALL}</code> is the directory into which you installed the Berkeley DB
library.</p><p>Note that the load options may differ depending on the platform of 
your system.</p></div>
      <div class="sect2" lang="en" xml:lang="en">
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              <h3 class="title"><a id="idp52812512"></a>Build the Transaction Manager Server</h3>
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        <p>To do this, use the
Tuxedo <span class="bold"><strong>buildtms(1)</strong></span> utility.  The <span class="bold"><strong>buildtms</strong></span> command will create
the <code class="literal">Berkeley-DB</code> resource manager in the directory from which it was run.
The parameters to the <span class="bold"><strong>buildtms</strong></span> command should be:</p>
        <pre class="programlisting">buildtms -v -o DBRM -r BERKELEY-DB</pre>
        <p>This will create an executable transaction manager server, <code class="literal">DBRM</code>, which is
called by Tuxedo to process begins, commits, and aborts.</p>
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      <div class="sect2" lang="en" xml:lang="en">
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              <h3 class="title"><a id="idp52759288"></a>Update the UBBCONFIG File</h3>
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        <p>You must make sure that your TUXCONFIG environment variable
identifies an UBBCONFIG file that properly identifies your resource
managers.  In the GROUPS section of the UBBCONFIG file, you should identify the
group's LMID and GRPNO, as well as the transaction manager server name
"TMSNAME=DBRM."  You must also specify the OPENINFO parameter, setting it
equal to the string</p>
        <pre class="programlisting">rm_name:dir</pre>
        <p>where rm_name is the resource name specified in the RM file (that is,
BERKELEY-DB) and dir is the directory for the Berkeley DB home environment
(see <a href="../api_reference/C/envopen.html" class="olink">DB_ENV-&gt;open()</a> for a discussion of Berkeley DB environments).</p>
        <p>Because Tuxedo resource manager startup accepts only a single string
for configuration, any environment customization that might have been
done via the config parameter to <a href="../api_reference/C/envopen.html" class="olink">DB_ENV-&gt;open()</a> must instead be done
by placing a <a class="xref" href="env_db_config.html" title="DB_CONFIG configuration file">DB_CONFIG configuration file</a> in the Berkeley DB environment directory.
See <a class="xref" href="env_naming.html" title="File naming">File naming</a> for further
information.</p>
        <p>Consider the following configuration.  We have built a transaction
manager server, as described previously.  We want the Berkeley DB environment
to be <code class="literal">/home/dbhome</code>, our database files to be maintained in
<code class="literal">/home/datafiles</code>, our log files to be maintained in
<code class="literal">/home/log</code>, and we want a duplexed server.</p>
        <p>The GROUPS section of the ubb file might look like the following:</p>
        <pre class="programlisting">group_tm LMID=myname GRPNO=1 TMSNAME=DBRM TMSCOUNT=2 \
	OPENINFO="BERKELEY-DB:/home/dbhome"</pre>
        <p>There would be a <a class="xref" href="env_db_config.html" title="DB_CONFIG configuration file">DB_CONFIG configuration file</a> in the directory
<code class="literal">/home/dbhome</code> that contained the following two lines:</p>
        <pre class="programlisting">set_data_dir	/home/datafiles
set_lg_dir	/home/log</pre>
        <p>Finally, the UBBCONFIG file must be translated into a binary version using
Tuxedo's <span class="bold"><strong>tmloadcf</strong></span>(1) utility, and then the pathname of that
binary file must be specified as your TUXCONFIG environment variable.</p>
      </div>
      <p>At this point, your system is properly initialized to use the Berkeley DB
resource manager.</p>
      <p>See <a href="../api_reference/C/db.html" class="olink">DB class</a> for further information on accessing data files
using XA.</p>
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